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Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).


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Old 06-20-2003, 07:18 AM   #1
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Question Either Ieee1394 OR CD/DVD drive


After installing Mandrake 9.1 on my HP ze4200, the external IEE1394 harddisk is not available. It should have the
directory /dev/sdax, but it is not there. The IEEE drivers are loaded. My internal CD/DVD combo is available, using /dev/scd1

In the lilo.conf file there is an entry, called hda=ide-scsi. When I remove this entry, the CD drive is not available anymore, BUT the IEEE1394 is working.
Mandrake recognizes this automatically during booting, that there is a new drive, and also that the CD drive is gone...

What exactly does the hda=ide-scsi option means, and could anybody give me a hint or solution, to get both drives working together?

Thanks in advance,
Old 06-20-2003, 09:15 PM   #2
Brain Drop
Registered: Feb 2003
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i found this, i might give you some clues as to why if it doesnt actually answer your question.
Linux Setup:
The Linux CD-R user software tools (e.g., cdrecord) all work only with SCSI devices, so if you have an IDE CD-R drive, you need to access it with the ide-scsi driver (loadable kernel module), NOT with the normal ide-cdrom driver, so that it looks like a scsi device to cdrecord. And if you want to be able to copy from you CD-ROM to your CD-R drive (you do), then you must also use the ide-scsi driver on your CD-ROM. Basically, just use ide-scsi for ALL your CD drives, and be done with it.

First you need to edit /etc/lilo.conf to tell the kernel to use the ide-scsi driver. Your CD-ROM is likely device 'hdc', but look through your /var/log/dmesg boot messages to find out for sure. Then edit /etc/lilo.conf as appropriate, e.g.:

# Use SCSI for IDE CD-ROM/DVD and CD-R drives:
append="hda=ide-scsi hdc=ide-scsi"
# /dev/{sr0,scd0} are the DVD
# /dev/{sr1,scd1} are the CD-R

After ediing lilo.conf, run 'sudo lilo' to install your new lilo settings into your MBR, and reboot ('sudo shutdown -r now').

After successfully rebooting, again look through /var/log/dmesg to find the new, SCSI-style device name - mine was 'sr0'. Now you have to change your /dev/cdrom symlink to point to the correct new SCSI device for you CD-ROM:

$ ls -l /dev/cdrom
lrwxrwxrwx 1 root root 8 Nov 8 18:25 /dev/cdrom -> /dev/hdc
$ sudo rm /dev/cdrom
$ sudo ln -s /dev/sr0 /dev/cdrom
$ ls -l /dev/cdrom /dev/sr0 /dev/scd0
lrwxrwxrwx 1 root root 8 Nov 8 18:25 /dev/cdrom -> /dev/sr0
lrwxrwxrwx 1 root root 4 Nov 2 09:47 /dev/sr0 -> scd0
brw-rw---- 1 root cdrom 11, 0 Mar 14 2002 /dev/scd0

$ sudo cdrecord -scanbus
Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jvrg Schilling
Linux sg driver version: 3.1.22
Using libscg version 'schily-0.5'
0,0,0 0) '3ware ' '3w-xxxx ' '1.0' Disk
1,0,0 100) 'PIONEER ' 'DVD-ROM DVD-116 ' '1.22' Removable CD-ROM
1,1,0 101) 'TEAC ' 'CD-W540E ' '1.0D' Removable CD-ROM



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